Results 51 to 60 of about 147,367 (260)

Alkylating Agent–Induced FANCL Impairment Damages Pulmonary Arterial, Venous, and Microvascular Endothelial Cells and Predisposes to PAH/PVOD

Advanced Science, EarlyView.
This study establishes a novel cisplatin‐induced rat model of PAH/PVOD and identifies a conserved mechanistic axis—FANCL impairment, DNA damage accumulation, and endothelial dysfunction—triggered by cisplatin or mitomycin C across pulmonary arteries, veins, and microvessels.
Shiyun Liu, Yufei Sun, Xinlei Wu, Haixia Chen, Shaocong Mo, Zichong Li, Yiwei Gong, Xiaoqian Shan, Yuanqi Li, Yaru Guan, Junqi Zhu, Han Yan, Min Du, Feng Wei, Peixin Ou, Ziyi Wang, Chenting Zhang, Lei Xu, Wenju Lu, Jian Wang, Kai Yang   +20 more
wiley   +1 more source

Remifentanil improves left ventricular diastolic parameters in patients with impaired diastolic function: a prospective clinical study

BMC Anesthesiology
Background Left ventricular diastolic dysfunction has a significant impact on perioperative morbidity and mortality, and its incidence is high in elderly individuals.
Özge Köner, Mustafa Aytek Şimşek, Nurcan Kızılcık, Çiğdem Koca, Ayça Türer Cabbar   +4 more
doaj   +1 more source

The study of left ventricular diastolic function by Doppler echocardiography: the essential for the clinician

Heart International, 2007
An abnormal diastolic function of left ventricle represents the main pathophysiological mechanism responsible for different clinical states such as restrictive cardiomyopathy, infiltrative myocardial disease and, specially, diastolic heart failure (also ...
Livio Dei Cas, Francesco Fracassi, Emanuela Pulcini, Diego Maffeo, Pompilio Faggiano, Enrico Vizzardi, Savina Nodari   +6 more
doaj   +1 more source

Ultrasound‐Triggered piRNA Delivery Using Biomimetic Phase‐Changeable Nanoparticles for Theranostics of Myocardial Infarction

Advanced Science, EarlyView.
A biomimetic ultrasound‐responsive piRNA delivery nanoparticle platform (piR‐NPs) enables targeted delivery and ultrasound (US)‐triggered release of piR‐1873 in infarcted myocardium. The released piR‐1873 suppresses Usp2‐mediated RIP1/RIP3/MLKL necroptosis, reduces myocardial injury and fibrosis, and promotes cardiac functional recovery, providing a ...
Yajun Zhang, Hongzhao Qi, Yanyan Yang, Feng Wang, Tiantian Han, Yanbei Lei, Xiaolu Li, Zhibin Wang, Hua Qu, Tao Yu, Pin Sun   +10 more
wiley   +1 more source

Human Engineered Heart Tissues Reproduce Trigger‐ and Substrate‐Driven Mechanisms of Ventricular Tachycardia

Advanced Science, EarlyView.
Engineered heart tissues (EHTs) derived from human iPSCs replicate mechanisms of ventricular tachycardia at the tissue level. Acquired Long‐QT conditions cause early afterdepolarizations, wavebreak, and transient rotors; in contrast, focal cryoinjury forms a stable substrate that supports ongoing reentry.
Matthew Fiedler, Alejandra Vasquez Limeta, Ernesto Reyes Sanchez, Leah Carter, Francisco Altamirano   +4 more
wiley   +1 more source

Aortic root movement correlation with the function of the left ventricle

Scientific Reports, 2021
Echocardiographic assessment of systolic and diastolic function of the heart is often limited by image quality. However, the aortic root is well visualized in most patients.
Piotr Karwat, Ziemowit Klimonda, Grzegorz Styczyński, Cezary Szmigielski, Jerzy Litniewski   +4 more
doaj   +1 more source

Ischemic Postconditioning Protects Aged Myocardium Against Ischemia/Reperfusion Injury by Regulating Mitochondrial Dynamics via piR‐4913

Advanced Science, EarlyView.
A tiny RNA tips the scales of cardiac injury in aging. piR‐4913 recruits OGT to Drp1 and drives its O‐GlcNAcylation at Thr604, promoting excessive mitochondrial fission that aggravates ischemia‐reperfusion injury. Ischemic postconditioning silences this pathway to restore mitochondrial balance and protect the aged myocardium, revealing piR‐4913 as a ...
Xiangyu Zhao, Yanchun Li, Nan Li, Juan Zhang, Xiaolong Ma, Fei Yang, Ruihan Long, Yining Tian, Yichen Wang, Shengchao Ma, Huiping Zhang, Yideng Jiang   +11 more
wiley   +1 more source

Chinese Expert Consensus on the Clinical Application of Finerenone in Geriatric Comorbidities

AGING MEDICINE, EarlyView.
Mineralocorticoid receptor (MR) overactivation drives inflammation, oxidative stress, and fibrosis in the heart, kidneys, and vasculature, leading to cardiorenal dysfunction. MR signaling promotes hypertrophy, remodeling, and injury through pathways like oxidative stress and inflammation, resulting in vascular stiffness and progressive organ damage ...
Xiaoming Wang, Cuntai Zhang
wiley   +1 more source

SFMFNet: Spatial‐Frequency Multiscale Fusion Network for Left Ventricle Segmentation in Echocardiography

Advanced Intelligent Systems, EarlyView.
Automatic left ventricular segmentation in echocardiography is critical for cardiac function assessment but remains challenging due to limited crossdomain feature interaction. This paper proposes SFMFNet, a Spatial‐Frequency Multi‐Scale Fusion Network that integrates multiscale convolution, wavelet transform, and Fourier transform.
Dang Li, Patrick Pang, Chi‐Kin Lam, Tao Tan   +3 more
wiley   +1 more source

Implantable Systems for Cardiovascular Treatment and Monitoring: Comparative Insights From Intracardiovascular and Extracardiovascular Technologies

Advanced Intelligent Systems, EarlyView.
A unifying device–cardiovascular interface framework is presented to classify implantable cardiovascular technologies as intracardiovascular blood‐contacting systems or extracardiovascular tissue‐only and blood‐handling architectures. Cross‐class comparison across shared semiquantitative criteria, including blood‐contact burden, biomimicry ...
Bergo Nicolò, Semproni Federica, Maselli Martina, Colli Andrea, Cianchetti Matteo, Ciuti Gastone, Stefanini Cesare, Menciassi Arianna   +7 more
wiley   +1 more source